13239911 has 8 divisors (see below), whose sum is σ = 13471920. Its totient is φ = 13009792.

The previous prime is 13239901. The next prime is 13239913. The reversal of 13239911 is 11993231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13239911 - 2¹⁴ = 13223527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13239913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22031 + ... + 22623.

It is an arithmetic number, because the mean of its divisors is an integer number (1683990).

Almost surely, 2^13239911 is an apocalyptic number.

13239911 is a deficient number, since it is larger than the sum of its proper divisors (232009).

13239911 is an equidigital number, since it uses as much as digits as its factorization.

13239911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945.

The product of its digits is 1458, while the sum is 29.

The square root of 13239911 is about 3638.6688500055. The cubic root of 13239911 is about 236.5710996369.

The spelling of 13239911 in words is "thirteen million, two hundred thirty-nine thousand, nine hundred eleven".